Can You Lock the Car with the Spare Key Inside?

2 Answers
VanMaya
07/25/25 9:28pm
If it's a smart key, you cannot lock the car with it inside. Using the spare key when the car key is locked inside: New cars usually come with two keys, and most car owners naturally keep one as the main key and the other as a spare. So when you accidentally lock yourself out of the car, the spare key can come in handy. Simply go back home to retrieve the spare key and unlock the car. Just remember not to leave the spare key inside the car again. Calling the 4S store's after-sales rescue service when the car key is locked inside: Besides using the spare key, the most reliable method is to call the 4S store's after-sales rescue service. A single phone call is all it takes, and you can wait for the rescue team to arrive and assist with unlocking the car.
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HazelMarie
08/11/25 10:17pm
I used to leave the spare key in the car a few times, which almost caused problems. Nowadays, cars are equipped with smart systems that detect if the key is inside the vehicle, preventing you from locking the doors. For example, in keyless entry models, if the key is on the seat or in the glove box, the car will beep or not respond when you try to lock it. This is actually a safety feature to prevent you from being locked out or the key getting stuck inside. However, with older cars, mechanical keys might allow you to lock the car but not get back in, which could cost you hundreds to call a locksmith and waste time. It's better not to take the risk—keep the spare key with a family member or in a drawer at home, not in the car, just in case.
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